Journal ArticleDOI
Nanoantenna-enhanced gas sensing in a single tailored nanofocus
TLDR
This work places a single palladium nanoparticle near the tip region of a gold nanoantenna and detects the changing optical properties of the system upon hydrogen exposure, demonstrating antenna-enhanced hydrogen sensing at the single-particle level.Abstract:
Plasmonic resonances are widely used for sensing applications. The plasmon resonance of a single nanoantenna structure is now used to detect changes in the dielectric properties of a nearby palladium nanoparticle exposed to hydrogen gas, enabling highly sensitive sensing in ultrasmall volumes. The approach can be easily extended to other sensing and catalysis schemes.read more
Citations
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Journal ArticleDOI
Bimetallic Nanocrystals: Syntheses, Properties, and Applications
TL;DR: A comprehensive review of recent research activities on bimetallic nanocrystals, featuring key examples from the literature that exemplify critical concepts and place a special emphasis on mechanistic understanding.
Journal ArticleDOI
Quantum plasmon resonances of individual metallic nanoparticles
TL;DR: This work investigates the plasmon resonances of individual ligand-free silver nanoparticles using aberration-corrected transmission electron microscope imaging and monochromated scanning TEM electron energy-loss spectroscopy, and presents an analytical quantum mechanical model that describes this shift due to a change in particle permittivity.
Journal ArticleDOI
Nanoplasmonics: past, present, and glimpse into future
TL;DR: Fundamental theoretical ideas in nanoplasmonics are reviewed and selected experimental developments are reviewed, including fundamentals, nanolocalization of optical energy and hot spots, ultrafast nanoplAsmonics and control of the spatiotemporal Nanolocalized fields.
Journal ArticleDOI
Fano-resonant asymmetric metamaterials for ultrasensitive spectroscopy and identification of molecular monolayers
Chihhui Wu,Alexander B. Khanikaev,Ronen Adato,Nihal Arju,Ahmet Ali Yanik,Hatice Altug,Gennady Shvets +6 more
TL;DR: In this paper, an infrared plasmonic surface based on a Fano-resonant asymmetric metamaterial exhibiting sharp resonances caused by the interference between subradiant and super-radiant resonances was introduced.
Journal ArticleDOI
Nanoantennas for visible and infrared radiation.
TL;DR: The role of plasmonic resonances on the performance of nanoantennas and the influence of geometrical parameters imposed by nanofabrication are discussed.
References
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Book
Plasmonics: Fundamentals and Applications
TL;DR: In this paper, the authors discuss the role of surface plasmon polaritons at metal/insulator interfaces and their application in the propagation of surfaceplasmon waveguides.
Journal ArticleDOI
Biosensing with plasmonic nanosensors
TL;DR: This paper introduces the localized surface plasmon resonance (LSPR) sensor and describes how its exquisite sensitivity to size, shape and environment can be harnessed to detect molecular binding events and changes in molecular conformation.
Journal ArticleDOI
Plasmonics for extreme light concentration and manipulation.
Jon A. Schuller,Edward S. Barnard,Wenshan Cai,Young Chul Jun,Justin S. White,Mark L. Brongersma +5 more
TL;DR: The basic concepts behind plasmonics-enabled light concentration and manipulation are discussed, an attempt to capture the wide range of activities and excitement in this area is made, and possible future directions are speculated on.
Journal ArticleDOI
Shell-isolated nanoparticle-enhanced Raman spectroscopy
Jian-Feng Li,Yi-Fan Huang,Yong（ Georgia Inst Technol Sch Mat Sci Engn） Ding,Zhilin Yang,Song Bo Li,Xiao-Shun Zhou,Fengru Fan,Fengru Fan,Wei Zhang,Zhi-You Zhou,De-Yin Wu,Bin Ren,Zhong Lin（ Georgia Inst Technol Sch Mat Sci Engn） Wang,Zhong-Qun Tian +13 more
TL;DR: Shell-isolated nanoparticle-enhanced Raman spectroscopy is reported, in which the Raman signal amplification is provided by gold nanoparticles with an ultrathin silica or alumina shell, which significantly expands the flexibility of SERS for useful applications in the materials and life sciences, as well as for the inspection of food safety, drugs, explosives and environment pollutants.
Journal ArticleDOI
Enhancement and quenching of single-molecule fluorescence.
TL;DR: By varying the distance between molecule and particle, this work shows the first experimental measurement demonstrating the continuous transition from fluorescence enhancement to fluorescence quenching.